Cesar Chavez, the head of the United Farm Workers Union, calls for the resignation of Walter Kintz, the first legal counsel for the state Agriculture Labor Relations Board, in Sacramento, Calif., on Sept. 16, 1975. Chavez's efforts in California culminated in landmark legislation that protected the rights of the state's farmworkers and created the ALRB. AP hide caption

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AP

Verizon workers picket outside one of the company's facilities in Philadelphia Wednesday. Verizon landline and cable workers on the East Coast walked off the job Wednesday morning after little progress in negotiations since their contract expired nearly eight months ago. Matt Rourke/AP hide caption

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Matt Rourke/AP

Graduate workers rally in 2014 at Columbia University for the ability to unionize. Tiffany Yee-Vo/Graduate Workers of Columbia-UAW hide caption

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Tiffany Yee-Vo/Graduate Workers of Columbia-UAW

Are Grad Students Employees? Labor Board To Again Weigh In

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The American flag, seen through the columns of the Supreme Court building, blows in the wind on Feb. 13. Jon Elswick/AP hide caption

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Jon Elswick/AP

On The Docket, In Limbo: Scalia's Death Casts Uncertainty On Key Cases

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Senate Health, Education, Labor, and Pensions Committee Chairman Lamar Alexander, R-Tenn., makes opening statements during a hearing to examine the National Labor Relations Board's joint employer decision last month. Al Drago/CQ Roll Call/Getty hide caption

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Al Drago/CQ Roll Call/Getty

One Step Closer To Collective Bargaining, Some Temp Workers Unionize

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Supporters cheer during a meeting Monday when the Seattle City Council voted to approve a measure that would allow ride-sharing drivers for Uber and other ride services to unionize. Matt Mills McKnight/Reuters/Landov hide caption

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Matt Mills McKnight/Reuters/Landov

Fact Checking Uber On Labor Laws

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Northwestern football players are reflected in a helmet during drills at a practice. On Monday, the National Labor Relations Board dismissed a petition that players be allowed to form a union. Jeffrey Phelps/AP hide caption

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Jeffrey Phelps/AP

As Big 3 Automakers Begin Union Talks, Both Sides Say Profit Is Job 1

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Shipping containers at the Port of Los Angeles. Unions are stepping up their efforts to thwart White House plans for passing foreign trade deals on a "fast track" through Congress. Nick Ut/AP hide caption

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Nick Ut/AP

Wisconsin Gov. Scott Walker became a Republican political star by taking on his state's public employee unions. This week he signed a bill that would weaken private-sector unions. Cliff Owen/AP hide caption

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Cliff Owen/AP

Targeting Unions: Right-To-Work Movement Bolstered By Wisconsin

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Hundreds of union members rally outside the Capitol in Madison on Tuesday to oppose a Republican-led measure that would make Wisconsin a right-to-work state. Reuters/Landov hide caption

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Reuters/Landov

Gov. Scott Walker Goes Head-To-Head With Labor Over Right-To-Work

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Wisconsin Governor To Sign Right-To-Work Bill Amid Protests

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